All three div's below should be identical (Mathematical Bold Capital A though E : U+1D400 - U+1D404) if you have code2001 font installed on your computer. For the first div, no font is specified while for the 2nd and 3rd, 'times new roman, code2001' and 'code2001' are specified, respectively.

𝐀𝐁𝐂𝐃𝐄
𝐀𝐁𝐂𝐃𝐄
𝐀𝐁𝐂𝐃𝐄